Instructions: Answer concisely. Where applicable, write commands or exact steps. Assume the device is the ZTE MF79U USB LTE modem. Total: 6 questions.
End of exam.
Possibly, if the bootloader is intact. Use the QFIL emergency recovery method. If the bootloader is corrupt, the device is hard-bricked.
Flashing new ZTE MF79U firmware requires caution. Follow these steps precisely.
Generic firmware often enables band selection, TTL tweaking (for hotspot tethering bypass), and advanced AT command support.